I suppose it depends on the terms of the licence. I've permanent/lifetime licences for various software, applied to either particular versions or all version re

I suppose it depends on the terms of the licence. I've permanent/lifetime licences for various software, applied to either particular versions or all version released within a year of purchase; this means that the licensed persists indefinitely or until a violation of license (or until rightful transfer of license or voluntary termination of license). I've very few licenses which include all future versions, and those are mostly open-source volunteer projects.